Hypothyroidism in dogs is a very common problem. Hypothyroidism occurs when the thyroid gland, a small gland in the neck adjacent to the windpipe, does not produce enough thyroid hormone. The thyroid gland is considered a master gland . It is responsible for producing thyroid hormones which have an effect on many parts of the body, including the skin and hair coat, metabolism, behaviour, attitude and even bone marrow function. In dogs, immune mediated disease and atrophy of the gland account for almost all cases.
Hypothyroidism generally develops in middle aged or elderly dogs and can occur in any breed although there are breeds that have a genetic tendency towards this problem. Breeds with definite predisposition to develop hypothyroidism include: the Doberman pinscher, the Golden retriever and Labrador Retriever, the Irish Setter, the Great Dane, the Dachshund, the Boxer, the Beagle and the Maltese.
Clinical signs of Hypothyroidism are many and varied. Common signs include poor haircoat or loss of hair particularly along the sides, recurrent infections especially with yeast, thickened skin, obesity, lethargy, anemia, a slow heart rate and elevated blood cholesterol. Neurological signs such as weakness, aggression and muscle atrophy can also be seen. Megaesophagus ( an enlarged esophagus) and laryngeal paralysis ( a cause of roaring in dogs) as well as infertility have also been linked with hypothyroidism. Dogs who rupture their cranial cruciate ligaments are also frequently hypothyroid.
Hypothyroidism is best diagnosed with a series of blood tests that measure T4, T3, free T3 and free T4 and thyroid autoantibodies. The conventional treatment of this condition is replacement of the hormone with a synthetic hormone and this usually works quite well. There is a natural canine thyroid glandular from Standard Process which may or may not be effective. There is also a natural thyroid supplement that is used for humans but it is considerably more expensive than the synthetic hormone. Chinese herbs and homeopathy can also help. Most of the thyroid supplements should have Kelp in some form, Ashwaganda and Eleutherococus Senticosus. These are contained in the herbal supplement Thyroid Support Silver and it can help if the thyroid has not been totally destroyed. However if the thyroid has been totally destroyed, supplement with the hormone L-thyroxine has proved the most effective treatment.
Related Product: Thyroid Support Silver for Dog Hypothyroidism